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README.md

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-- [x] `:`
-- [x] `alias`
-- [x] `astprint`
-- [x] `builtins`
-- [x] `cd`/`chdir`
-- [x] `echo`
-- [x] `env`/`setenv`/`unsetenv` (`env` à completer)
-- [x] `export`
-- [x] `exit`
-- [x] `printenv`
-- [x] `pushd`/`popd`
-- [x] `repeat`
-- [x] `termname`
-- [x] `which`/`where`
-- [x] `yes`
-- [x] `expr`
+# 🐚 42sh – A Unix Shell Inspired by TCSH
 
-- [x] pipes
-- [x] redirections
-- [x] line editing (move, del)
-- [x] input shortcut (^A,^E,^F,^B,...)
-- [x] foreground/background jobs (`&`), (btln `fg`) (bonus) 
-- [x] while/foreach loops
-- [x] if
-- [x] `||`/`&&`
-- [x] script with shebangs
-- [x] `-c` eval argument
-- [x] `-e` exit on failure
-- [x] `-h` help (open man?)
-- [x] globbing
-- [x] var interpreter
-- [x] inhibitor
-- [x] magic quotes
-- [x] parenthesis
-- [x] command history (`history` btln)
-- [x] heredocs
-- [x] special env vars: `$?`, `$$`, ...
+**42sh** is a custom Unix shell written in C as part of the EPITECH curriculum.
+Inspired by `tcsh`, this project aims to recreate a powerful, interactive command-line interface, complete with many built-in features, scripting capabilities, and user-friendly enhancements.
+
+## ✨ Features
+
+- **Built-in commands**:
+  - `cd`, `echo`, `exit`, `alias`, `setenv`, `unsetenv`, `env`, `printenv`, `which`, `where`, `repeat`, `yes`, `termname`, `expr`, and more...
+- **Redirections**:
+  - Input/output redirection support: `>`, `<`, `>>`, `<<` (here-documents)
+- **Pipelines**:
+  - Command chaining using pipes (`|`)
+- **Globbing**:
+  - Wildcard expansion (`*`, `?`, etc.)
+- **Job control**:
+  - Background job handling with `&` `fg` `bg` `Ctrl+Z`
+- **History**:
+  - Command history navigation using arrow keys
+- **Interractive reverse search**:
+  - Search in the history with `Ctrl+R`
+- **Line editing**:
+  - Interactive line editing and cursor movement
+- **Auto completion**:
+  - Interactive auto completion with `TAB`
+- **Git integration**:
+  - Dynamic prompt with branch name, ahead and behind indicator
+- **Alias system**:
+  - Define and expand custom aliases
+- **Environment variables**:
+  - Manage the shell’s environment
+- And more...
+
+## ⚙️ Build & Run
+
+```bash
+git clone https://github.com/Savapitech/42sh.git
+cd 42sh
+make
+./42sh
+```
+- Requires a POSIX-compliant system and a C compiler (tested with gcc on Linux).
+
+## 📁 Project Structure
+
+```txt
+42sh/
+├── include/            # Header files
+├── src/                # Shell source code
+├── ulib/               # Custom utility libraries
+├── validation_tests.py # Functional tests
+├── Makefile            # Build system
+└── README.md           # You're reading it!
+```
+
+## 🧠 Concepts & Architecture
+
+- **Lexer/Parser**: Tokenizes user input into an Abstract Syntax Tree (AST)
+- **Executor**: Traverses the AST to execute commands
+- **Builtins**: Custom implementation of standard shell commands
+
+## 🧪 Testing
+
+You can run the test suite using:
+```bash
+make tests_run
+```
+(Requires `python3`)
+
+## ❄️ Nix Support
+This project provides full support for Nix:
+- You can run the shell directly with:
+```bash
+nix run github:Savapitech/42sh
+```
+- If you are working on the project, a development environment is available via the flake:
+```bash
+nix develop
+```
+This gives you access to a reproducible devShell with all required dependencies.
+
+
+## 🛠️ Development Notes
+
+Written in **C99**
+
+Follows the **EPITECH coding style**
+
+No memory leaks (only if no errors occured)
+
+Handles signals (e.g., `Ctrl+C`, `Ctrl+D`)
+
+Compatible with **tcsh-style** interactive behavior
+
+## 📜 License
+
+This project is part of the Epitech curriculum and is shared for educational purposes.
+
+## 👥 Authors
+
+[@savalet](https://github.com/savalet), [@tekClovis](https://github.com/tekClovis), [@Arthur-gtr](https://github.com/Arthur-gtr), [@Titouanhct](https://github.com/Titouanhct), [@eiffis](https://github.com/eiffis)
+
+![CI](https://github.com/Savapitech/42sh/actions/workflows/main.yml/badge.svg)